March weather forecast
La Union, El Salvador

Continuing the trend, March in La Union offers exciting outdoor weather, differing slightly from February. Gradually, the summer warmth begins to grace the city with higher low temperatures compared to the previous month. Periods of rainfall begin to occur, but clear skies and sunny days still rule over the city's beautiful landscapes. Sea temperatures show a steady rise, encouraging beach activities. Wind speed continues to decrease, meaning less breezy days compared to earlier months.

Temperature

La Union transitions into March recording an average high-temperature of a still tropical 34.3°C (93.7°F), closely aligning with the preceding month's temperature. La Union encounters an average low-temperature of 23.6°C (74.5°F) during March nights.

Heat index

The heat index for March is evaluated at an extremely hot 41°C (105.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

With an average relative humidity of 56%, March is the least humid month.

Rainfall

In La Union, in March, it is raining for 5.4 days, with typically 4mm (0.16") of accumulated precipitation. In La Union, during the entire year, the rain falls for 201.6 days and collects up to 974mm (38.35") of precipitation.

Sea temperature

In La Union, the average seawater temperature in March is 28.3°C (82.9°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In March, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 06:06 and sunset at 18:00. On the last day of March, sunrise is at 05:47 and sunset at 18:03 CST.

Sunshine

In March, the average sunshine is 10.9h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In March, the maximum UV index of 7 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Notice! The reflection of water and sand increases the UV radiation significantly.